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Home Q & A Board Science-Related Homework Help Physics Astronomy
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khalasar99 khalasar99
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6 years ago
A trombone or a trumpet can be considered a(n)
 
  A) open organ pipe.
  B) closed organ pipe.

Question 2

A long telephone pole (wood density 0.80 kg/m3 ) is vertically lowered into a slightly larger vertical pipe which is filled with salt water of density 1.04 kg/m3. The pole ends up floating with what percent of the pole above the water?
 
  What will be an ideal response?

Question 3

A plane flying horizontally at a speed of 50.0 m/s and at an elevation of 160. m drops a package of supplies. Two seconds later it drops a second package. How far apart will the two packages land on the ground?
 
  A) 100. m
  B) 67.7 m
  C) 283. m
  D) 162. m
  E) 177. m

Question 4

0.45 kg of a metal at 90.C is added to 0.40 kg of water at 20.0C.
 
  (a) If the final temperature of the mixture is 26.C, what is the specific heat of the metal?
  (b) If the water container has a significant heat capacity, will this increase or decrease the metal
   specific heat determined in part agiven the same data?

Question 5

As global warming progresses, the
 
  A) landmasses will warm the most
  B) equatorial regions will warm the most
  C) polar regions will warm the most
  D) oceans will warm the most
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leanicole22leanicole22
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6 years ago
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khalasar99 Author
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#2
6 years ago
Oh god, I was lost before coming here. Thanksss
wrote...
#3
6 years ago
Great, make sure you mark the topic solved, it hides it from other eyes Slight Smile
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